Home / 13,743.97-20,603.67-6,720.01

Finding the Fourth Proportional to 13,743.97, 20,603.67 and 6,720.01

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Solution

The fourth proportional to 13,743.97, 20,603.67 and 6,720.01 is: 10,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.97 : 20,603.67 = 6,720.01 : x
  2. Step 2: Convert to fraction form
    13,743.97/20,603.67 = 6,720.01/x
  3. Step 3: Cross multiply
    13,743.97x = 20,603.67 × 6,720.01
  4. Step 4: Simplify right side
    13,743.97x = 138,456,868.44
  5. Step 5: Solve for x
    x = 138,456,868.44/13,743.97
  6. Step 6: Final answer
    x = 10,074.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.